https://www.cllct.com/sports-collect...-for-4-million
“A collector on Friday took what is believed to be the biggest loss in card collecting history when their Babe Ruth card sold for $3.2 million less than what it was bought for in December 2023.
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On Friday, 690 days after buying it, the collector sold it for $4.02 million at Heritage — a loss of $4,609 every day they held it.”